WO2021159942A1 - 拼接显示面板及拼接显示装置 - Google Patents
拼接显示面板及拼接显示装置 Download PDFInfo
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- WO2021159942A1 WO2021159942A1 PCT/CN2021/073143 CN2021073143W WO2021159942A1 WO 2021159942 A1 WO2021159942 A1 WO 2021159942A1 CN 2021073143 W CN2021073143 W CN 2021073143W WO 2021159942 A1 WO2021159942 A1 WO 2021159942A1
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- Prior art keywords
- splicing
- spliced
- substrate
- screen unit
- display panel
- Prior art date
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
- G09F9/3026—Video wall, i.e. stackable semiconductor matrix display modules
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
- H01L25/16—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits
- H01L25/167—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits comprising optoelectronic devices, e.g. LED, photodiodes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/02—Composition of display devices
- G09G2300/026—Video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions
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- G—PHYSICS
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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- G—PHYSICS
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- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0421—Structural details of the set of electrodes
- G09G2300/0426—Layout of electrodes and connections
Definitions
- the present disclosure relates to the field of display technology, and in particular to a spliced display panel and a spliced display device.
- the LED chip may include a Mini LED (Mini Light Emitting Diode) chip or a Micro LED (Micro Light Emitting Diode) chip.
- the spliced display panel includes a spliced substrate, a plurality of spliced screen units, a plurality of electrical devices and a plurality of circuit components.
- the splicing substrate has a plurality of first openings.
- the multiple splicing screen units are arranged on one side of the splicing substrate; a first opening of the splicing substrate corresponds to a group of splicing screen units and exposes a part of the group of splicing screen units; the one
- the group splicing screen unit includes at least one splicing screen unit.
- the plurality of electrical devices are arranged on a side of the splicing substrate away from the plurality of splicing screen units.
- a circuit assembly passes through a first opening, one end of the circuit assembly is electrically connected with a splicing screen unit, and the other end is electrically connected with at least one electrical device.
- one side of the splicing substrate has at least one first optical alignment mark
- a side of the splicing screen unit close to the splicing substrate has at least one second optical alignment mark.
- the at least one first optical alignment mark is configured to interact with at least one of the splicing screen unit in the process of setting the splicing screen unit in the area of the splicing screen unit to be set in the splicing substrate.
- the second optical alignment mark performs alignment.
- At least a part of the splicing substrate provided with the at least one first optical alignment mark is transparent.
- the orthographic projection of the seams between two adjacent sets of splicing screen units on the splicing substrate does not overlap with the plurality of first openings.
- the plurality of first openings correspond to the plurality of splicing screen units one-to-one.
- the center line of the first opening coincides or substantially coincides with the center line of the corresponding splicing screen unit.
- the orthographic projection of the seam between any two adjacent splicing screen units on the splicing substrate does not overlap with the plurality of first openings.
- the splicing screen unit includes: a base substrate; a driving circuit layer disposed on a side of the base substrate away from the splicing substrate; and at least one wire.
- one end of the wire is introduced from the side surface of the splicing screen unit and is electrically connected to the driving circuit layer of the splicing screen unit; the other end of the electrode line is led to the splicing screen unit close to the splicing substrate And electrically connected to the circuit assembly.
- the base substrate and/or the splicing substrate are glass substrates.
- the circuit assembly includes: a first flexible circuit board and a driving circuit device.
- One end of the first flexible circuit board is electrically connected with the wire, and the other end is electrically connected with the at least one electrical device; the driving circuit device is arranged on the first flexible circuit board.
- the circuit assembly includes: a second flexible circuit board, a third flexible circuit board, a circuit board connector, and a driving circuit device.
- One end of the second flexible circuit board is electrically connected to the wire, and the other end is electrically connected to the circuit board connector; one end of the third flexible circuit board is electrically connected to the circuit board connector, and the other end is electrically connected to the circuit board connector.
- the at least one electrical device is electrically connected; at least one of the second flexible circuit board and the third flexible circuit board is electrically detachably connected to the circuit board connector, and the second flexible circuit board is electrically connected to the circuit board connector.
- At least one of the third flexible circuit boards is provided with the driving circuit device.
- each splicing screen unit is provided with four second flexible circuits on a side close to the splicing substrate Board, each second flexible circuit board is provided with the driving circuit device.
- Four third flexible circuit boards are correspondingly arranged around each first opening; the four third flexible circuit boards are electrically connected to the four second flexible circuit boards through corresponding circuit board connectors, respectively.
- Four groups of electrical devices are arranged around the four third flexible circuit boards, and each group of electrical devices includes at least one electrical device.
- the spliced display panel further includes: a circuit layer disposed between the spliced substrate and the plurality of electrical devices.
- the circuit assembly is electrically connected to the at least one electrical device through the circuit layer.
- the spliced display panel further includes a plurality of first fixing members arranged between the spliced substrate and the plurality of spliced screen units.
- the splicing screen unit is connected to the splicing substrate through at least one first fixing member.
- the spliced display panel further includes: a structural frame disposed on a side of the splicing substrate away from the plurality of splicing screen units; and a plurality of second fixing members are disposed on the splicing screen unit. Between the substrate and the structural frame, and connected with the splicing substrate and the structural frame.
- the structural frame has a plurality of second openings.
- the plurality of second openings expose the plurality of electrical devices.
- the plurality of first fixing members include at least one of a fixing tape and a magnetic attraction structure.
- the plurality of second fixing members include at least one of the fixing tape and the magnetic attraction structure.
- the splicing screen unit is a mini light emitting diode display module or a mini light emitting diode display module.
- the splicing screen unit has a first actual size and a first preset size.
- the first actual size is smaller than the first preset size.
- the difference between the first preset size and the first actual size is a first difference, and the first difference is a difference between the dimensional tolerance of the splicing screen unit and the splicing tolerance of the splicing screen unit with.
- the splicing screen unit has a first actual size and a first preset size; the first actual size is smaller than the first preset size.
- the difference between the first preset size and the first actual size is a second difference, and the second difference is (A+2 ⁇ B+C) ⁇ 2.
- the spliced substrate includes a plurality of sub-spliced substrates that are spliced with each other, and each sub-spliced substrate has a second actual size and a second preset size.
- the second actual size is smaller than the second preset size.
- the difference between the second preset size and the second actual size is a third difference, and the third difference is 2 ⁇ B.
- A is the unilateral dimensional tolerance of the spliced screen unit
- B is the unilateral dimensional tolerance of the sub-spliced substrate
- C is the assembly tolerance of the spliced screen unit and the sub-spliced substrate.
- a splicing display device in another aspect, includes the spliced display panel as described in any of the above embodiments.
- FIG. 1 is a structural diagram of a spliced display panel according to some embodiments of the present disclosure
- FIG. 2 is a structural diagram of another spliced display panel according to some embodiments of the present disclosure.
- FIG. 3 is a structural diagram of another spliced display panel according to some embodiments of the present disclosure.
- FIG. 4 is a structural diagram of still another spliced display panel in some embodiments of the present disclosure.
- FIG. 5 is a structural diagram of still another spliced display panel according to some embodiments of the present disclosure.
- Fig. 6 is a structural diagram of a splicing substrate close to a splicing screen unit according to some embodiments of the present disclosure
- FIG. 7 is a structural diagram of another splicing substrate close to the splicing screen unit according to some embodiments of the present disclosure.
- FIG. 8 is a structural diagram of a spliced substrate on a side away from the spliced substrate according to some embodiments of the present disclosure
- FIG. 9 is a structural diagram of a splicing screen unit close to a side of the splicing substrate according to some embodiments of the present disclosure.
- Fig. 10 is a structural diagram of a splicing screen unit according to some embodiments of the present disclosure.
- FIG. 11 is a structural diagram of a structural frame on a side away from the splicing screen unit and a side of the splicing substrate away from the splicing substrate according to some embodiments of the present disclosure
- Figure 12 is a structural diagram of a circuit assembly according to some embodiments of the present disclosure.
- FIG. 13 is a structural diagram of still another spliced display panel according to some embodiments of the present disclosure.
- FIG. 14 is a structural diagram of still another spliced display panel in some embodiments of the present disclosure.
- FIG. 15 is a structural diagram of a spliced display device according to some embodiments of the present disclosure.
- first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with “first” and “second” may explicitly or implicitly include one or more of these features. In the description of the embodiments of the present disclosure, unless otherwise specified, “plurality” means two or more.
- connection and its extensions may be used.
- connection may be used to indicate that two or more components are in direct physical or electrical contact with each other.
- the embodiments disclosed herein are not necessarily limited to the content of this document.
- At least one of A, B, and C has the same meaning as “at least one of A, B, or C", and both include the following combinations of A, B, and C: only A, only B, only C, A and B The combination of A and C, the combination of B and C, and the combination of A, B and C.
- a and/or B includes the following three combinations: A only, B only, and the combination of A and B.
- the term “if” is optionally interpreted as meaning “when” or “when” or “in response to determination” or “in response to detection.”
- the phrase “if it is determined" or “if [the stated condition or event] is detected” is optionally interpreted to mean “when determining" or “in response to determining" Or “when [stated condition or event] is detected” or “in response to detecting [stated condition or event]”.
- the exemplary embodiments are described herein with reference to cross-sectional views and/or plan views as idealized exemplary drawings.
- the thickness of layers and regions are exaggerated for clarity. Therefore, variations in the shape with respect to the drawings due to, for example, manufacturing technology and/or tolerances can be envisaged. Therefore, the exemplary embodiments should not be construed as being limited to the shape of the area shown herein, but include shape deviations due to, for example, manufacturing.
- an etched area shown as a rectangle will generally have curved features. Therefore, the areas shown in the drawings are schematic in nature, and their shapes are not intended to show the actual shape of the area of the device, and are not intended to limit the scope of the exemplary embodiments.
- splicing display products mainly include: cabinets, multiple HUBs (multi-port transponders), multiple sending cards, multiple receiving cards, and multiple PCBs (Printed Circuit Boards).
- the box has multiple areas where PCBs are to be assembled; one side of each HUB is provided with a first connector; one side of each PCB is provided with multiple LED chips, and the opposite side is provided with a second connector .
- the first connector and the second connector may be connected to each other.
- the above multiple HUBs need to be connected to multiple sending cards and multiple receiving cards respectively, and the multiple HUBs are respectively installed on the multiple PCBs to be assembled in the box.
- the multiple HUBs are fixedly connected to the box body, and then the multiple PCBs are respectively arranged in the multiple PCB areas to be assembled in the box body, so that the second connector of each PCB is connected to the corresponding PCB to be assembled.
- the first connector of the HUB in the area of the PCB is connected to realize the fixed connection between the PCB and the box body, thereby realizing the splicing of multiple PCBs.
- the multiple LED chips arranged on the PCB are located on the side of the PCB away from the HUB.
- the actual splicing width of the spliced display product is generally greater than 0.10mm.
- the size of the splicing seam is large, which will cause black lines to appear at the splicing seam of the spliced display product, which affects the quality of the display.
- some embodiments of the present disclosure provide a spliced display panel 100 and a spliced display device 1000, which aim to solve the above technical problems.
- Some embodiments of the present disclosure provide a spliced display panel 100, and the structure of the spliced display panel 100 is shown in FIGS. 1 to 5.
- the above-mentioned spliced display panel 100 includes: a spliced substrate 1, a plurality of spliced screen units 2, a plurality of electrical devices 3, and a plurality of circuit components 4.
- the above-mentioned multiple splicing screen units 2 are arranged on one side of the splicing substrate 1.
- the multiple splicing screen units 2 may be arranged in an array, for example, arranged in multiple rows along the first direction X, and arranged in multiple columns along the second direction Y. Wherein, the first direction X and the second direction Y intersect, for example, the two directions may be perpendicular to each other.
- the splicing screen unit 2 may be a mini light emitting diode display module or a mini light emitting diode display module, for example.
- the splicing screen unit 2 can perform image display.
- the above-mentioned spliced substrate 1 has a plurality of first openings K1.
- the shape, size and arrangement of the plurality of first openings K1 can be selected and set according to actual needs.
- the size of the plurality of first openings K1 is relatively small, and the shape of the plurality of first openings K1 may be, for example, a quadrilateral (for example, a rectangle or a square, etc.). At this time, the plurality of first openings K1 may be arranged in an array, for example.
- the size of the plurality of first openings K1 in the first direction X is larger, and the size in the second direction Y is smaller, and the shape of the plurality of first openings K1 may be, for example, It is a bar.
- the plurality of first openings K1 may be arranged in an array, or may be arranged in a row along the second direction Y in sequence.
- a first opening K1 of the splicing substrate 1 corresponds to a group of splicing screen units 2.
- each first opening K1 corresponds to a group of splicing screen units 2.
- a first opening K1 corresponds to a group of splicing screen units 2, which may mean that the orthographic projection of the group of splicing screen units 2 on the splicing substrate 1 has a partial overlap with the first opening K1. At this time, the first opening K1 may expose a part of the corresponding group of spliced screen units 2.
- a group of splicing screen units 2 includes at least one splicing screen unit 2. That is, a group of splicing screen units 2 may include one splicing screen unit 2 or multiple splicing screen units 2.
- the first opening K1 on the splicing substrate 1 may correspond to the plurality of splicing screen units 2.
- the shape of the first opening K1 may be a strip opening, and the opening K1 may correspond to all or a part of the splicing screen unit 2 of the corresponding row.
- the orthographic projection of the joints between two adjacent sets of splicing screen units 2 on the splicing substrate 1 does not overlap with the plurality of first openings K1.
- the size of the first opening K1 in the second direction Y is smaller than the size of the corresponding splicing screen unit 2 in the second direction Y, and the part of the splicing substrate 1 located around the first opening K1 can be used for the splicing screen.
- At least two opposite sides of the unit 2 are carried to avoid affecting the stability of the splicing screen unit 2.
- first openings K1 on the splicing substrate 1 may also be opened in a row along the second direction Y, or opened in an oblique line along a certain direction between the first direction X and the second direction Y.
- the multiple first openings K1 of the splicing substrate 1 and the multiple splicing screen units 2 are one by one.
- the center line of each first opening K1 coincides or substantially coincides with the center line of the corresponding splicing screen unit 2.
- each first opening K1 coincides or substantially coincides with the center line of the corresponding splicing screen unit 2, which is beneficial to the alignment of the circuit assembly 4 and the first opening K1 on the one hand, and is beneficial to the alignment of the circuit assembly 4 and the first opening K1 on the other hand.
- the length of the lines connected to the interface of the splicing screen unit 2 in different directions in the line assembly 4 is as balanced as possible, which facilitates the modular production of the line assembly 4 and reduces the cost.
- the circuit assembly 4 reference may be made to the following description, which will not be repeated here.
- the shape of the first opening K1 is, for example, a quadrangular shape.
- the size of the first opening K1 is small. In the process of cutting the spliced substrate to form the first opening K1 and obtain the spliced substrate 1, only a small part of the spliced substrate is removed, and a larger part of the spliced substrate is retained. This enables the splicing substrate 1 to have higher strength.
- the orthographic projection area of the splicing screen unit 2 on the splicing substrate 1 is larger than the area of the corresponding first opening K1, and the boundary of the projection of the splicing screen unit 2 on the splicing substrate 1 surrounds the corresponding first opening K1. That is, the orthographic projection of the splicing seam between any two adjacent splicing screen units 2 on the splicing substrate 1 does not intersect all the first openings K1 in the splicing substrate 1. In this way, it can be ensured that the part of the splicing substrate 1 located around the first opening K1 can carry the periphery of the splicing screen unit 2 and avoid affecting the stability of the splicing screen unit 2.
- the plurality of first openings K1 in the spliced substrate 1 may be formed by cutting in the spliced substrate by laser ablation or CNC (Computer Numerical Control) grinding method, for example.
- the splicing substrate 1 has high dimensional accuracy. In this way, after a plurality of splicing screen units 2 are arranged on one side of the splicing substrate 1, the size of the width of the splicing seam between two adjacent splicing screen units 2 can be made smaller, and the splicing accuracy can be improved.
- the multiple electrical devices 3 are arranged on the side of the splicing substrate 1 away from the multiple splicing screen units 2. That is, the electrical device 3 and the splicing screen unit 2 are respectively located on opposite sides of the splicing substrate 1.
- the structure of the above-mentioned electrical device 3 may include multiple types.
- the electrical device 3 may include but is not limited to FPGA (Field Programmable Gate Array, programmable logic device), DCDC (direct current to direct current) converter, storage device or connector (connector), etc.
- the electrical device 3 can be arranged on the side of the splicing substrate 1 away from the multiple splicing screen units 2 using SMT technology.
- SMT technology is a method of mounting leadless or short lead surface assembly components (SMC/SMD for short, chip components in Chinese) on the surface of PCB or other substrates by reflow soldering or dip soldering. Circuit assembly technology to be welded and assembled.
- one circuit assembly 4 passes through a first opening K1, and one end of the circuit assembly 4 is electrically connected to a splicing screen unit 2. The other end of the circuit assembly 4 is electrically connected to at least one electrical device 3. In this way, the circuit assembly 4 and the electrical device 3 can be used to drive the splicing screen unit 2 for image display.
- the number of circuit assemblies 4 electrically connected to the same splicing screen unit 2 and the number of electrical devices 3 electrically connected to the same circuit assembly 4 can be selected and set according to actual needs.
- the splicing screen unit 2 and the first opening K1 are arranged in a one-to-one correspondence, and the number of circuit assemblies 4 electrically connected to the same splicing screen unit 2 is two.
- the two circuit assemblies 4 pass through the corresponding first openings at the same time.
- An opening K1 is electrically connected to the splicing screen unit 2 and the electrical device 3.
- each circuit assembly 4 passes through a corresponding opening and is electrically connected to the splicing screen unit 2 and the electrical device 3.
- multiple splicing screen units 2 on one side of the splicing substrate 1, SMT multiple electrical devices 3 on the opposite side, and combining the multiple splicing screen units 2 and Multiple electrical devices 4 are conducted through multiple circuit components, which can replace multiple PCBs, multiple HUBs, multiple receiving cards, multiple sending cards and other devices in the related art.
- the spliced display panel 100 provided by some embodiments of the present disclosure can provide a unified high-precision splicing platform for the splicing of multiple splicing screen units 2 by providing a splicing substrate 1 with higher precision, so that each splicing screen Unit 2 can use a high-precision splicing platform as a reference for splicing. Compared with related technologies, splicing accuracy is greatly improved.
- the spliced display panel 100 provided by the embodiment of the present disclosure can divide the complicated splicing action in the related art into at least two sequential actions of fixed connection and electrical connection.
- the fixed connection action includes the fixed connection of each splicing screen unit 2 with the splicing substrate 1 after the alignment with the splicing substrate 1 is completed.
- the electrical connection action includes the circuit assembly 4 on the side of the splicing screen unit 2 close to the splicing substrate 1 passing through the first opening K1 on the splicing substrate 1 to be electrically connected to the corresponding electrical device 3 and the splicing screen unit 2.
- the splicing accuracy is greatly improved. It has been verified that the width of the seams between the multiple spliced screen units 2 in the spliced display panel 100 is less than or equal to 10 ⁇ m. Compared with the related technology, the width of the seam is improved by an order of magnitude in accuracy.
- one side of the splicing substrate 1 has at least one first optical alignment mark A1
- the splicing screen unit 2 has at least one second optical pair on the side close to the splicing substrate 1.
- Bit mark A2 The at least one first optical alignment mark A1 is configured to, in the process of setting the splicing screen unit 2 in the splicing screen unit area to be set in the splicing substrate 1, and the splicing screen unit 2 have at least one second optical Align the alignment mark A2.
- the above-mentioned alignment may refer to the process of setting the splicing screen unit 2 on the splicing substrate 1 in the area where the splicing screen unit is to be set by a high-precision device, placing the first optical alignment mark A1 and the corresponding first optical alignment mark A1
- the two optical alignment marks A2 are aligned and optically focused, so that the center of the first optical alignment mark A1 and the center of the corresponding second optical alignment mark A2 coincide or roughly coincide, and then the splicing screen unit 2 is assembled to On the splicing substrate 1, the splicing screen unit 2 is exactly located in the area of the splicing screen unit to be set in the splicing substrate 1.
- the first optical alignment mark A1 can be provided on the side of the splicing substrate 1 close to each splicing screen unit 2, of course, it can also be provided on the side of the splicing substrate 1 away from each splicing screen unit 2.
- the structure close to the side of the focusing device that is, the splicing substrate 1 or the display screen unit 2) At least partially transparent.
- the display screen unit 2 is used for image display, if a part of the display screen unit 2 is set to be transparent, the display effect of the display screen unit 2 is easily affected. Therefore, at least the part of the splicing substrate 1 provided with the first optical alignment mark A1 is transparent.
- optical focusing can be performed from the side of the splicing substrate 1 away from the splicing screen unit 2, and it can also facilitate the recognition of the first optical alignment mark A1 and the corresponding second optical alignment mark A2 by the focusing device of the above-mentioned high-precision equipment. So as to achieve precise alignment.
- the splicing substrate 1 is transparent as a whole.
- the splicing substrate 1 may be made of glass. That is, the splicing substrate 1 may be a glass substrate, which is beneficial to achieve high-precision bonding and improve splicing accuracy.
- the thickness of the glass substrate is, for example, about 1.0mm, and its size can be determined according to specific conditions. For example, if n ⁇ m splicing screen units 2 need to be assembled in a certain application, the splicing substrate 1 can be directly customized to this size (if the size is too large, it can be divided into The multiple spliced substrates 210 are spliced), and then the corresponding spliced screen unit 2, the electrical device 3, the circuit assembly 4, etc. are assembled.
- the spliced substrate 1 may be developed and exposed at a certain corner of the spliced substrate 1 to obtain the first optical alignment mark A1.
- each area of the splicing screen unit to be set on the splicing substrate 1 may be provided with two first optical alignment marks A1.
- the second optical alignment mark A2 can be obtained by the same development exposure on the side of the splicing screen unit 2 close to the splicing substrate 1.
- Each splicing screen unit 2 may be provided with two second optical alignment marks A2, and the two second optical alignment marks A2 correspond to the positions of the two first optical alignment marks A1.
- the splicing accuracy is within 10 ⁇ m.
- the present application may regulate the wiring of the splicing screen unit 2 to cooperate with high-precision splicing.
- the splicing screen unit 2 may include: a base substrate 21, a driving circuit layer 22 and at least one wire 23.
- the splicing screen unit 2 may also include multiple LED chips (for example, Mini LED chips or Micro LED chips) 24.
- the above-mentioned base substrate 21 may be, for example, a glass substrate.
- the base substrate 21 has a high dimensional accuracy, so that the display screen unit 2 itself can have a high dimensional accuracy.
- the above-mentioned driving circuit layer 22 is provided on the side of the base substrate 21 away from the splicing substrate 1.
- the above-mentioned multiple LED chips 24 are arranged on the side of the driving circuit layer 22 away from the base substrate 21 and are connected to the driving circuit layer 22.
- the driving circuit layer 22 can transmit driving signals to the plurality of LED chips 24 so that the plurality of LED chips 24 emit light.
- one end of the aforementioned wire 23 is introduced from the side surface of the splicing screen unit 2 and is electrically connected to the driving circuit layer 22 of the splicing screen unit 2.
- the other end of the wire 23 is led to the side of the splicing screen unit 2 close to the splicing substrate 1 and is electrically connected to the circuit assembly 4.
- the circuit assembly 4 can generate a driving signal, which is transmitted to the driving circuit layer 22 via the wire 23 to drive the LED chip 24 to emit light.
- the wire 23 includes, but is not limited to, a power supply line, a signal line, and the like.
- one end of the wire 23 of the splicing screen unit 2 is introduced from the side of the splicing screen unit 2 to adapt to the hierarchical structure of the splicing screen unit 2.
- the other end of the wire 23 of the splicing screen unit 2 is led to the side of the splicing screen unit 2 close to the splicing substrate 1 to facilitate alignment with the first opening K1 on the splicing substrate 1 and facilitate the electrical connection between the wire 23 and the circuit assembly 4.
- the splicing screen unit 2 may include an array substrate 2a and a color filter substrate 2b.
- the array substrate 2 a may include the above-mentioned base substrate 21, the driving circuit layer 22, the wires 23 and the LED chip 24.
- the color film substrate 2b may include a color film layer (for example, including blue color resist, red color resist, and green color resist), BM (black matrix), and CF glass (glass on the color film side) substrate with bank (protrusions), BM It is used to block the non-luminous area to improve the contrast, and the bank can improve the light efficiency.
- the CF glass here can be replaced with a transparent glue structure.
- the above-mentioned circuit assembly 4 has a variety of structures, which can be selected and set according to actual needs.
- the circuit assembly 4 includes: a first flexible circuit board 41 and a driving circuit device 42.
- One end of the flexible circuit board 41 is electrically connected to the wire 23 and the other end is electrically connected to the electrical device 3.
- the driving circuit device 42 is disposed on the first flexible circuit board 41.
- the driving circuit device 42 may be a driving IC (Integrated Circuit, integrated circuit).
- the first flexible printed circuit (Flexible Printed Circuit, FPC) 41 used in the circuit assembly 4 has excellent characteristics such as light weight, small thickness, and flexibility to bend and fold, which is suitable for a small installation space.
- the driving circuit device 42 is arranged on the first flexible circuit board 41 to realize the driving control of each splicing screen unit 2.
- the circuit assembly 4 includes: a second flexible circuit board 43, a third flexible circuit board 44, a circuit board connector 45 and a driving circuit device 42.
- one end of the second flexible circuit board 43 is electrically connected to the wire 23, and the other end is electrically connected to the circuit board connector 45.
- One end of the third flexible circuit board 44 is electrically connected to the circuit board connector 45, and the other end is electrically connected to the electrical device 4.
- At least one of the second flexible circuit board 43 and the third flexible circuit board 44 is electrically detachably connected to the circuit board connector 45, and at least one of the second flexible circuit board 43 and the third flexible circuit board 44 is provided with a driving circuit ⁇ 42 ⁇ Device 42.
- the driving circuit device 42 may be a driving device or a driving IC.
- the circuit assembly 4 adopts two sections of flexible circuits including a second flexible circuit board 43 and a third flexible circuit board 44.
- the second flexible circuit board 43 and the third flexible circuit board 44 are connected by a circuit board connector 45 to realize the detachable and flexible connection of the two flexible circuit boards.
- the second flexible circuit board 43 may be electrically connected to the wires 23 of the splicing screen unit 2 in a fixed manner, that is, the second flexible circuit board 43 is integrated into the splicing screen unit 2. During the splicing process of the splicing screen unit 2, the second flexible circuit board 43 can pass through the first opening K1 on the splicing substrate 1. In the process of electrically connecting the splicing screen unit 2 and the electrical device 3, the second flexible circuit board 43 is electrically connected to the circuit board connector 45.
- the third flexible circuit board 44 may be electrically connected to the circuit board connector 45 in a fixed manner, and the whole constituted by the third flexible circuit board 44 and the circuit board connector 45 is electrically connected to the electrical device 3 , Then it can cooperate with the second flexible circuit board 43 to realize the electrical connection between the splicing screen unit 2 and the electrical device 3.
- each splicing screen unit 2 may be provided with four thirds on the side close to the splicing substrate 1.
- Two flexible circuit boards 43 each of the second flexible circuit boards 43 is provided with a driving circuit device 42.
- Four third flexible circuit boards 44 are correspondingly provided around each first opening K1, and the four third flexible circuit boards 44 are respectively electrically connected to the four second flexible circuit boards 43 through corresponding circuit board connectors 42 .
- four groups of electrical devices 3 are arranged around the four third flexible circuit boards 44, and each group of electrical devices 3 includes at least one electrical device 3.
- each first opening K1 is rectangular.
- each of the third flexible circuit boards 44 is opposite to one side of the first opening K1.
- each splicing screen unit 2 may be provided with four second flexible circuit boards 43 on the side close to the splicing substrate 1.
- the positions of the above-mentioned four second flexible circuit boards 43 and the above-mentioned four third flexible circuit boards 44 are corresponding, so that the process of electrically connecting the third flexible circuit board 44 and the corresponding second flexible circuit board 43 can be avoided. A crossover of circuit boards occurred.
- each group of the electrical components 3 can be opposed to one side of the first opening K1. In this way, in the process of electrically connecting the third flexible circuit board 44 and the corresponding electrical device 3, the crossover of the circuit boards can be avoided.
- the spliced display panel 100 further includes: a circuit layer 5 disposed between the spliced substrate 1 and the plurality of electrical devices 3 described above. Each circuit component 4 is electrically connected to the corresponding electrical device 3 through the circuit layer 5.
- the circuit layer 5 is composed of multiple circuits. Multiple electrical devices 3 can be electrically connected through the circuit layer 5, and each circuit component 4 can be electrically connected to the corresponding electrical device 3 through the circuit layer 5.
- the distance between the circuit layer 5 and the splicing screen unit 2 can be shortened, making subsequent electrical connections easier, and shortening the length of the circuit assembly 4, saving At the same time, it can also solve the installation problem of the circuit layer 5 for the next-level assembly products such as the spliced display device 1000 obtained subsequently, and make full use of the space of the spliced display panel 100.
- a circuit layer connector 51 may be provided at the electrical connection of the circuit layer 5 and the circuit assembly 4 to realize the insertion of the circuit assembly 4 and the circuit layer 5, so that the assembly process More convenient.
- the spliced display panel 100 further includes: a plurality of first fixing members 6.
- the plurality of first fixing members 6 are all fixedly arranged on the same side of the splicing substrate 1 and located between the splicing substrate 1 and the plurality of splicing screen units 2 described above. Wherein, each splicing screen unit 2 is connected to the splicing substrate 1 through at least one first fixing member 6.
- each splicing screen unit 2 may be connected to the splicing substrate 1 through a first fixing member 6.
- the first fixing member 6 may, for example, have a ring shape, and fix the splicing screen unit 2 on the splicing substrate 1 in a relatively stable manner.
- each splicing screen unit 2 may be connected to the splicing substrate 1 through a plurality of first fixing members 6.
- the plurality of first fixing members 6 may be arranged at intervals and arranged in a circle to fix the splicing screen unit 2 on the splicing substrate 1 in a relatively stable manner.
- the first fixing member 6 may be a fixing tape.
- the fixing tape can be arranged in a ring shape to provide a stable fixed connection for the splicing screen unit 2.
- the fixing tape may be a double-sided tape.
- the first fixing member 6 may also be a magnetic attraction structure to facilitate the disassembly of the splicing screen unit 2.
- the spliced display panel 100 further includes: a second fixing member 8 and a structural frame 7.
- the structural frame 7 is disposed on the side of the splicing substrate 1 away from the splicing screen unit 2.
- the second fixing member 8 is disposed between the splicing substrate 1 and the structural frame 7, and the second fixing member 8 is connected to the splicing substrate 1 and the structural frame 7.
- the spliced substrate 1 after completing the splicing of the spliced screen units 2 can be fixedly connected to the structural frame 7 by the second fixing member 8, which facilitates assembly to obtain the next-level assembly product of the spliced display panel 100.
- the structural frame 7 can provide strong support for the entire spliced display panel 100 on the one hand, and can protect each spliced screen unit 2 and the circuit layer 5 on the other hand.
- the structural frame 7 has a plurality of second openings K2.
- the plurality of second openings K2 expose the plurality of electrical devices 3 described above.
- the center line of the second opening K2 and the center line of the first opening K1 coincide or substantially coincide, and the size of the second opening K2 is larger than the size of the first opening K1. This is beneficial to ensure that the structural frame 7 does not block the above-mentioned multiple electrical devices 3.
- the plurality of second openings K2 can be used to avoid the above-mentioned plurality of electrical devices 3, avoiding the situation that the size between the structural frame 7 and the splicing substrate 1 is small Next, crush damage is formed on the plurality of electrical devices 3. Moreover, after the plurality of second openings K2 are provided, it is convenient to maintain the splicing screen unit 2, the electrical device 3, the circuit assembly 4, etc. through the plurality of second openings K2.
- the second fixing member 8 may be a fixing tape.
- the fixing tape is arranged in a ring shape and is located on the edge of the structural frame 7. In this way, the edge of the spliced substrate 1 and the edge of the structural frame 7 can be connected by the second fixing member 7 to provide a stable fixed connection for the spliced substrate 1 and the spliced screen unit 2.
- the second fixing member 8 may also be a magnetic structure, which facilitates the disassembly between the entirety of each splicing screen unit 2 and the splicing substrate 1 and the structural frame 7.
- the inventor of the present disclosure considers that when a splicing substrate 1 is used for the spliced display panel 100, in order to meet the high-precision splicing requirements, it is necessary to pay attention to the reasonable adjustment of the size when manufacturing each splicing screen unit 2.
- the present disclosure provides the following possible implementation: as shown in FIG. 13, the splicing screen unit 2 has a first actual size and a first preset size.
- the first actual size is smaller than the first preset size, and the difference between the first preset size and the first actual size is a first difference, and the first difference is the dimensional tolerance of the splicing screen unit 2 and the splicing screen The sum of the splicing tolerances of unit 2.
- the dimensional tolerance of the splicing screen unit 2 is 40 ⁇ m, and the splicing tolerance of the splicing screen unit 2 is 10 ⁇ m, so the Gap1 (gap) design value between two adjacent splicing screen units 2 is about 50 ⁇ m.
- the first actual size of the splicing screen unit 2 is larger than the first predetermined size. Let the size be 50 ⁇ m smaller.
- the inventor of the present application considers that when the size of the spliced display panel 100 is too large and multiple sub-spliced substrates need to be spliced together, in order to meet the high-precision splicing requirements, it is not only necessary to rationally adjust the size of each splicing screen unit 2 For the manufacturing size, the manufacturing size of each sub-spliced substrate must be adjusted reasonably.
- the present disclosure provides the following possible implementation: as shown in FIG. 14, the splicing screen unit 2 has a first actual size and a first preset size.
- the first actual size of the splicing screen unit 2 is smaller than the first preset size, and the difference between the first preset size and the first actual size is a second difference, and the second difference is (A+2 ⁇ B+C) ⁇ 2, which is twice the Gap2.
- the spliced substrate 1 has a plurality of sub-spliced substrates 11 that are spliced with each other, and each sub-spliced substrate 11 has a second actual size and a second preset size.
- the second actual size of the sub-spliced substrate 11 is smaller than the second preset size, and the difference between the second preset size and the second actual size is a third difference, and the third difference is 2 ⁇ B, that is 2 times the Gap3.
- A is the unilateral dimensional tolerance of the spliced screen unit 2
- B is the unilateral dimensional tolerance of the sub-spliced substrate 110
- C is the assembly tolerance of the spliced screen unit 2 and the sub-spliced substrate 11.
- the second actual size of the spliced screen unit 2 and the third actual size of the sub-spliced substrate 11 need to be larger than their respective preset sizes. small.
- the spliced display device 1000 includes: the spliced display panel 100 as described in any of the foregoing embodiments.
- the spliced display panel 100 in the spliced display device 1000 adopts the spliced display panel 100 provided in the foregoing embodiments.
- the principle and technical effect please refer to the foregoing embodiments, and will not be repeated here.
- Some embodiments of the present disclosure also provide a method for manufacturing a spliced display panel, and the specific process flow of the manufacturing method is as follows.
- the circuit layer 5 and the first optical alignment mark A1 are fabricated on one side surface of the splicing substrate 1 through deposition and a patterning method including exposure and development.
- the electrical device 3 is arranged on the side of the splicing substrate 1 where the circuit layer 5 is arranged; then the third flexible circuit board 44 in the circuit assembly 4 is arranged.
- the second flexible circuit board 43 on the side of the splicing screen unit 2 close to the splicing base 1 is electrically connected to the third flexible circuit board 44 through the circuit board connector 45.
- the second fixing member 8 is used to fix the spliced substrate 1 and the structural frame 7 together.
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Abstract
Description
Claims (20)
- 一种拼接显示面板,包括:拼接基板,具有多个第一开口;多个拼接屏单元,设置于所述拼接基板的一侧;所述拼接基板的一个第一开口与一组拼接屏单元相对应,且暴露所述一组拼接屏单元的一部分;所述一组拼接屏单元包括至少一个拼接屏单元;多个电学器件,设置于所述所述拼接基板远离所述多个拼接屏单元的一侧;以及,多个线路组件;一个线路组件穿过一个第一开口,所述线路组件的一端与一个拼接屏单元电连接,另一端与至少一个电学器件电连接。
- 根据权利要求1所述的拼接显示面板,其中,所述拼接基板的一侧具有至少一个第一光学对位标记,所述拼接屏单元靠近所述拼接基板的一侧具有至少一个第二光学对位标记;所述至少一个第一光学对位标被配置为,在将所述拼接屏单元设置于所述拼接基板中的待设置拼接屏单元区域的过程中,与所述拼接屏单元所具有的至少一个第二光学对位标记进行对位。
- 根据权利要求2所述的拼接显示面板,其中,所述拼接基板的至少设置有所述至少一个第一光学对位标记的部分透明。
- 根据权利要求1~3中任一项所述的拼接显示面板,其中,相邻两组拼接屏单元之间的拼缝在所述拼接基板上的正投影,与所述多个第一开口之间无交叠。
- 根据权利要求1~4中任一项所述的拼接显示面板,其中,所述多个第一开口与所述多个拼接屏单元一一对应;所述第一开口的中心线与对应的所述拼接屏单元的中心线重合或大致重合。
- 根据权利要求5所述的拼接显示面板,其中,任意相邻的两个拼接屏单元之间的拼缝在拼接基板上的正投影,与所述多个第一开口无交叠。
- 根据权利要求1~6中任一项所述的拼接显示面板,其中,所述拼接屏单元包括:衬底基板;设置于所述衬底基板远离所述拼接基板一侧的驱动电路层;以及,至少一条导线;其中,所述导线的一端由所述拼接屏单元的侧面引入,并与所述拼接屏单元的驱动电路层电连接;所述电极线的另一端引至所述拼接屏单元靠近所述拼接基板的一侧,并与所述线路组件电连接。
- 根据权利要求7所述的拼接显示面板,其中,所述衬底基板和/或所述拼接基板为玻璃基板。
- 根据权利要求7或8所述的拼接显示面板,其中,所述线路组件包括:第一柔性线路板和驱动电路器件;所述第一柔性线路板的一端与所述导线电连接,另一端与所述至少一个电学器件电连接;所述驱动电路器件设置于所述第一柔性线路板上。
- 根据权利要求7或8所述的拼接显示面板,其中,所述线路组件包括:第二柔性线路板、第三柔性线路板、线路板连接器和驱动电路器件;所述第二柔性线路板的一端与所述导线电连接,另一端与所述线路板连接器电连接;所述第三柔性线路板的一端与所述线路板连接器电连接,另一端与所述至少一个电学器件电连接;所述第二柔性线路板和所述第三柔性线路板中的至少一个与所述线路板连接器为可拆卸电连接,所述第二柔性线路板和所述第三柔性线路板中的至少一个设置有所述驱动电路器件。
- 根据权利要求10所述的拼接显示面板,其中,在所述多个第一开口与所述多个拼接屏单元一一对应的情况下,每个拼接屏单元靠近所述拼接基板的一侧设置有四个第二柔性线路板,每个第二柔性线路板上设置有所述驱动电路器件;每个第一开口的周围对应设置有四个第三柔性线路板;所述四个第三柔性线路板分别通过相应的线路板连接器与所述四个第二柔性线路板电连接;所述四个第三柔性线路板的周围设置有四组电学器件,每组电学器件包括至少一个电学器件。
- 根据权利要求1~11中任一项所述的拼接显示面板,还包括:设置于所述拼接基板和所述多个电学器件之间的电路层;所述线路组件通过所述电路层与所述至少一个电学器件电连接。
- 根据权利要求1~12中任一项所述的拼接显示面板,还包括:设置于所述拼接基板和所述多个拼接屏单元之间的多个第一固定件;所述拼接屏单元通过至少一个第一固定件与所述拼接基板连接。
- 根据权利要求1~13中任一项所述的拼接显示面板,还包括:结构框架,设置于所述拼接基板远离所述多个拼接屏单元的一侧;以及,多个第二固定件,设置于所述拼接基板和所述结构框架之间,且与所述拼接基板及所述结构框架连接。
- 根据权利要求14所述的拼接显示面板,其中,所述结构框架具有多个第二开口;所述多个第二开口暴露所述多个电学器件。
- 根据权利要求13~15中任一项所述的拼接显示面板,其中,所述多个第一固定件包括固定胶带和磁吸结构中的至少一种;在所述拼接显示面板包括多个第二固定件的情况下,所述多个第二固定件包括所述固定胶带和所述磁吸结构中的至少一种。
- 根据权利要求1~16中任一项所述的拼接显示面板,其中,所述拼接屏单元为迷你发光二极管显示模组或微型发光二极管显示模组。
- 根据权利要求1~17中任一项所述的拼接显示面板,其中,所述拼接屏单元具有第一实际尺寸和第一预设尺寸;所述第一实际尺寸小于所述第一预设尺寸;所述第一预设尺寸与所述第一实际尺寸之间的差值为第一差值,所述第一差值为所述拼接屏单元的尺寸公差和所述拼接屏单元的拼接公差之和。
- 根据权利要求1~17中任一项所述的拼接显示面板,其中,所述拼接屏单元具有第一实际尺寸和第一预设尺寸;所述第一实际尺寸小于所述第一预设尺寸;所述第一预设尺寸与所述第一实际尺寸之间的差值为第二差值,所述第二差值为(A+2×B+C)×2;所述拼接基板包括相互拼接的多个子拼接基板,每个子拼接基板具有第二实际尺寸和第二预设尺寸;所述第二实际尺寸小于所述第二预设尺寸;所述第二预设尺寸与所述第二实际尺寸之间的差值为第三差值,所述第三差值为2×B;其中,A为所述拼接屏单元的单边尺寸公差,B为所述子拼接基板的单边尺寸公差,C为所述拼接屏单元与所述子拼接基板的组装公差。
- 一种拼接显示装置,包括:如权利要求1~19中任一项所述的拼接显示面板。
Priority Applications (1)
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US17/628,472 US11783738B2 (en) | 2020-02-11 | 2021-01-21 | Spliced display panel and spliced display apparatus |
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CN202010087794.5A CN111276058B (zh) | 2020-02-11 | 2020-02-11 | 拼接显示面板及拼接显示装置 |
CN202010087794.5 | 2020-02-11 |
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CN114093248A (zh) * | 2020-07-31 | 2022-02-25 | 京东方科技集团股份有限公司 | 拼接显示单元、拼接显示装置及其制作方法 |
CN111951697B (zh) | 2020-08-10 | 2022-02-01 | Tcl华星光电技术有限公司 | 拼接显示屏 |
CN112133191B (zh) * | 2020-09-23 | 2023-05-05 | 爱奇视智慧技术(深圳)有限公司 | 一种拼接屏 |
CN112233566B (zh) * | 2020-11-23 | 2022-12-27 | 维沃移动通信有限公司 | 显示屏及电子设备 |
CN112785931B (zh) * | 2020-12-31 | 2023-09-19 | 厦门天马微电子有限公司 | 显示装置 |
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CN116486709A (zh) * | 2021-12-06 | 2023-07-25 | Tcl华星光电技术有限公司 | 拼接显示装置 |
CN117616490A (zh) | 2021-12-06 | 2024-02-27 | Tcl华星光电技术有限公司 | 拼接显示装置 |
CN114373421B (zh) * | 2022-01-27 | 2023-11-28 | 深圳市华星光电半导体显示技术有限公司 | 显示面板和显示装置 |
CN115116347B (zh) * | 2022-07-26 | 2023-10-20 | 湖北长江新型显示产业创新中心有限公司 | 一种显示面板及显示装置 |
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